Soil type

Oxides (%)

Poorly gravels

Near B5

Poorly sands

Near B3

Clayey sands

Near B2

Sio₂

68.18

85.53

59.22

Tio₂

0.35

0.01

0.80

Al₂o₃

7.02

6.90

10.45

Fe₂o₃

3.67

0.44

11.60

Mno

0.06

0.05

0.12

Mgo

1.22

0.04

2.44

Cao

13.27

11.27

6.85

Na₂o

0.44

0.99

0.53

K₂o

0.73

0.90

0.80

P₂o₃

0.19

0.06

0.11

Cl

0.67

0.22

0.12

So₃

1.70

0.93

1.33

LOI

2.50

2.66

5.63